Ilife A10S Stuck at 7% While Charging, Then Battery Drops Rapidly

I purchased an Ilife A10S model vacuum from Beymen, and it has only been four days since it arrived. From the initial setup, the battery level has consistently shown 97%. On my third use today, I experienced another issue: while it appeared to be charging on the dock, the battery remained stuck at 7% for hours. When I started using it, it suddenly showed 97%, but within two minutes, the battery level dropped to 80%. What should I do regarding this issue?